Loosing sound on Renders ??

studio1087 wrote on 2/22/2009, 11:35 AM
I have been using Sony Vegas with great success for making videos and slide shows. I am using a simple Aiptek HD video camera to capture video clips and then I assemble the clips into family movies.

The sound is vanishing on the renders. I just compiled about 20 short video clips from a grade school music show and the sound is gone on the final render.

I must have switched something on or off by accident and now the sound is gone on the renders.

What did I do??

I have looked everywhere on screen and I cannot figure out why the sound is suddenly muted.

Help please......and thank you very much.

John

Comments

mike_in_ky wrote on 2/22/2009, 3:07 PM
studio1087...

You mention you are capturing HD clips and loosing sound on the render. To which format are you rendering? Some high res formats preclude audio.

mike_in_nc
studioLord wrote on 2/23/2009, 10:45 PM
If you are rendering MPEG2 widescreen you will not get audio. That's aproblem I asked about in another post and am awaiting help. I do know that you can render it as .wmv and get both audio and video.
Hope that helps
John
Kenny304 wrote on 2/24/2009, 2:38 PM
Hi Studio1087 (John),

More info about your workflow and your desired outcome would help us help you.

What is your intention for the rendered file? Burn DVD for viewing on TV? View on computer? Upload to website for online viewing?

Also, what did you render the grade school musical show to? MPEG2?, AVI?, MP4?

There are so many variables we'll really need more info before we could offer any relative answers.

Kenny

TrackVision wrote on 5/28/2009, 7:01 AM
I've just loaded VMS9.0b on Vista 64 bit, which is working well. First test project was 1280 x 720p @60fps from the Aiptek A-HD camera. Yes, that's the one that the VMS9.0b Release Note specifically identifies as not supported,

Initial results were that the video loaded normally, but the audio track was not being loaded at all. After a bit of checking, it became clear that VMS was mis-reading the header, which caused the problem. Aiptek saves H.264 encoded video with AAC encoded audio. VMS was reading the file as having MPEG4 audio!

The simple solution is to change the video file extension from .MOV to .mp4m and then open VMS and drag the video into your project. In my case that works perfectly. YMMV, of course, but it appears to be a very simple solution for Aiptek users.